<?php
if(!function_exists('_meta_set_nocache')){
function _meta_set_nocache(){
    
	//'<meta http-equiv="Content-Type" content="text/html; charset=utf-8">'."\r\n"
    $s='<meta http-equiv="pragma" content="no-cach" />' ."\r\n"
    .'<meta http-equiv="cache-control" content="no-cache" />' ."\r\n"
    .'<meta http-equiv="expires" content="0" />'."\r\n";
	return $s;
}}
//注意 ?》后不可以再有内空，否则 编  lib.build.php会报错
?>